These patterns become even more complex and intriguing when the folded and faulted sedimentary layer sequence contains internal structures that pre-date thrust belt development. A particularly outstanding example of this effect is the Talar Syncline of the Makran fold-thrust belt, in which an extensional growth fault depocenter has been folded, uplifted, and exposed by erosion due to later compressional deformation (see Morley et al. (2011) linked below). The image below shows a broad curve in the thrust front of the model resulting from detachment and early thrust ramp movement of the depocenter.